The simplest rationalizing factor of √20- √45 is​

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The simplest rationalizing factor of √20- √45 is​

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Vivian 9 months 2021-08-20T18:53:20+00:00 1 Answer 0 views 0

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  1. Alexandra
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    2021-08-20T18:54:24+00:00
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    Step-by-step explanation:

    \sqrt{20} - \sqrt{45} \\ = \sqrt{ {2}^{2} \times 5 } - \sqrt{ {3}^{2} \times 5 } \\ = 2 \sqrt{5} - 3 \sqrt{5} \\ = - 1 \sqrt{5} \\ rationalising \: factor \: is \: \sqrt{5}

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